中国物理B ›› 2016, Vol. 25 ›› Issue (11): 117804-117804.doi: 10.1088/1674-1056/25/11/117804

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Engineering optical gradient force from coupled surface plasmon polariton modes in nanoscale plasmonic waveguides

Jiahui Lu(卢佳慧), Guanghui Wang(王光辉)   

  1. Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou 510006, China
  • 收稿日期:2016-03-25 修回日期:2016-07-20 出版日期:2016-11-05 发布日期:2016-11-05
  • 通讯作者: Guanghui Wang E-mail:wanggh@scnu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11474106) and the Natural Science Foundation of Guangdong Province, China (Grant No. 2016A030313439).

Engineering optical gradient force from coupled surface plasmon polariton modes in nanoscale plasmonic waveguides

Jiahui Lu(卢佳慧), Guanghui Wang(王光辉)   

  1. Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou 510006, China
  • Received:2016-03-25 Revised:2016-07-20 Online:2016-11-05 Published:2016-11-05
  • Contact: Guanghui Wang E-mail:wanggh@scnu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11474106) and the Natural Science Foundation of Guangdong Province, China (Grant No. 2016A030313439).

摘要: We explore the dispersion properties and optical gradient forces from mutual coupling of surface plasmon polariton (SPP) modes at two interfaces of nanoscale plasmonic waveguides with hyperbolic metamaterial cladding. With Maxwell's equations and Maxwell stress tensor, we calculate and compare the dispersion relation and optical gradient force for symmetric and antisymmetric SPP modes in two kinds of nanoscale plasmonic waveguides. The numerical results show that the optical gradient force between two coupled hyperbolic metamaterial waveguides can be engineered flexibly by adjusting the waveguide structure parameters. Importantly, an alternative way to boost the optical gradient force is provided through engineering the hyperbolic metamaterial cladding of suitable orientation. These special optical properties will open the door for potential optomechanical applications, such as optical tweezers and actuators.

关键词: hyperbolic metamaterial, waveguide, dispersion, optical force

Abstract: We explore the dispersion properties and optical gradient forces from mutual coupling of surface plasmon polariton (SPP) modes at two interfaces of nanoscale plasmonic waveguides with hyperbolic metamaterial cladding. With Maxwell's equations and Maxwell stress tensor, we calculate and compare the dispersion relation and optical gradient force for symmetric and antisymmetric SPP modes in two kinds of nanoscale plasmonic waveguides. The numerical results show that the optical gradient force between two coupled hyperbolic metamaterial waveguides can be engineered flexibly by adjusting the waveguide structure parameters. Importantly, an alternative way to boost the optical gradient force is provided through engineering the hyperbolic metamaterial cladding of suitable orientation. These special optical properties will open the door for potential optomechanical applications, such as optical tweezers and actuators.

Key words: hyperbolic metamaterial, waveguide, dispersion, optical force

中图分类号:  (Multilayers; superlattices; photonic structures; metamaterials)

  • 78.67.Pt
78.20.-e (Optical properties of bulk materials and thin films) 42.70.-a (Optical materials)